dt-bindings: phy: remove qcom-dwc3-usb-phy

Qualcomm DWC3 HS AND SS PHY CONTROLLER

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DWC3 PHY nodes are defined to describe on-chip Synopsis Physical layer

controllers.  Each DWC3 PHY controller should have its own node.

Required properties:

- compatible: should contain one of the following:

	- "qcom,dwc3-hs-usb-phy" for High Speed Synopsis PHY controller

	- "qcom,dwc3-ss-usb-phy" for Super Speed Synopsis PHY controller

- reg: offset and length of the DWC3 PHY controller register set

- #phy-cells: must be zero

- clocks: a list of phandles and clock-specifier pairs, one for each entry in

  clock-names.

- clock-names: Should contain "ref" for the PHY reference clock

Optional clocks:

  "xo"		External reference clock

Example:

		phy@100f8800 {

			compatible = "qcom,dwc3-hs-usb-phy";

			reg = <0x100f8800 0x30>;

			clocks = <&gcc USB30_0_UTMI_CLK>;

			clock-names = "ref";

			#phy-cells = <0>;

		};

		phy@100f8830 {

			compatible = "qcom,dwc3-ss-usb-phy";

			reg = <0x100f8830 0x30>;

			clocks = <&gcc USB30_0_MASTER_CLK>;

			clock-names = "ref";

			#phy-cells = <0>;

		};